Raphophone, phonograph, and the like.



PATBNTED APR. 28, 1908. J. 0. HIRSGHPELDER.

GRAPHOPHONE, PHONOGRAPH, AND THE LIKE. APPLICATION FILED JULY 16; 1907.

the Like, of w UNITED sT TEs IZATENT oFFroE.

JOSEPH OAKLAND HIRSOHFELDER, OF SAN FRANCISCO, CALIFORNIA.

RAPHOPHONE, PHONOGRAPH, AND THE LIKE.

To all whom "it may concern:

Beit known that I, Jos'srn OAKLAND HIRSOHFELDER, citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Gra hophones, Phonographs, and

Iiich the following is a specification.

My invention relates to improvements in the sounding box, sound conducting tubes and horns employed to conduct sound from graphophones, phonographs, talking inachines and the like, sound reproducing instruments, and it has for its object the provision of means whereby the vibrations of such parts are prevented orreduced to a minimum.

In the carrying out of my invention I' avoid all vibrating edges in the instrument by covering or protecting the same so as to make the whole sound conducting part a simple tube which gives no secondary or accessory vibrations, thereby preventing the metallic or harsh effect produced by the sound waves from such instruments and pre serving the natural tone of the vocalization when such instruments are producing reproductions of the human voice, and the true resonant character of the notes when the same is used in the reproduction of vocal and instrumental music.

In the accompanying drawing illustrating my invention the figure showh-is a central longitudinal section through the sound box, conducting tube, elbow and horn of a sound reproducing instrument I 1 is the sound box and 2 the sound conducting tube extending therefrom. I

3 is an elbow tube connecting the outer end of the tube 2 with the inner end of the horn 4.

5 designates bracket supporting the hornsections.

The horn 4 may papier-mach, or metal, but, I have found that the best effect results from the use of pasteboard as the material therefor.

I line the sound box, the tubes leading therefrom and the horn with a lining of rubbe made from pasteboard Specification of Letters Patent. Application filed July-'16, I907. Serial No. 384,014.

Patented April 28, 1908.

berjfelt, cloth or other similar material,

such lining being secured smoothly in place either by mechanical means or by the use of paste or other suitable adhesive compound.

' i be made as a continuous "his lining may tube throughout the connecting sound conducting parts, or each one of such parts may be provided with a separate lining. The material mustvhowever be placed on the interior of each'of the sound producing parts to produce the desired result.

dom from the objectionable features herein recited is thus secured;

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

.1. A horn for phonographs or similar instruments, comprising a tapered portion and an elbow portion both of which parts are lined throughout with a continuous sound deadening material consisting of rubber, felt, or cloth, as set forth.

2. The combination with a horn for phonographs or, similar instruments, comprising a tapered portion and an elbow portion, both of which parts are lined throughout with a continuous sound deadening material, sound box to which such horn is adapted to be connected, said sound box being also lined with sound deadening material, as set forth.

3. The combination with a horn for phono graphs or similar instruments, comprising a tapered-portion and an elbow portion, both of which parts are lined throughout with a continuous sound deadening-material consisting of rubber, felt, cloth,- or the like, of a sound box to which said horn is connected material constituting the lining of the horn. In testimony whereof I aflix my signature in presence of two witnesses.

JOSEPH OAKLAND HIRSCIIFELDER. Witnesses:

DANIEL BLOCK, WiL nEn LYMAN.

The sound '1 waves passing through the sound conducting of av 90. and theinterior of which is lined with the 

